Timbren SES Suspension Enhancement System SKU# GMRCK15S - Rear Kit
FREE Ground Shipping on All Orders
Lifetime Warranty and 100-Day Money Back Guarantee
Product ships within 1–3 business days
Light-duty trucks need to be versatile — from weekday jobsite hauling to weekend camper towing. The Timbren SES GMRCK15S Rear Kit is designed for GMC Sierra 1500 and Chevrolet Silverado 1500, delivering progressive suspension support that reduces sag and stabilizes sway. With Aeon® rubber springs, fast DIY installation, and a lifetime warranty, it’s the upgrade that keeps your truck confident under any load.
Key Features & Specs:
- Fits GMC Sierra 1500 & Chevrolet Silverado 1500
- Aeon® rubber springs provide progressive load handling
- Keeps trucks level under heavy loads and trailers
- Maintains smooth ride when unloaded
- Quick bolt-on install with hardware included
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Built for long-term durability with a lifetime warranty
Rear Suspension Enhancement Kits For GMC Sierra 1500 & Chevrolet Silverado 1500
Unstable loads while towing and hauling don’t just make for an uncomfortable ride. Difficult handling, rear sag, and corner sway create dangerous driving conditions — for you, your passengers, and other vehicles.
Whether you’re towing your RV across the country or hauling hay down the highway, our Timbren SES kits level your load, making for a safe, controlled ride so smooth, you might forget you’re towing altogether.
How? Our Aeon® rubber springs deliver a progressive spring rate. As load increases, our rubber springs push back harder, eliminating squat, sway, and roll. After installation, the rubber spring will be in contact with the vehicle’s frame. This contact won’t affect ride quality — you’ll still enjoy a comfortable unloaded ride, too.
What makes Timbren SES kits different from other suspension enhancement systems? Unlike air bags, our kits require no post-installation maintenance. And unlike other systems, you can install and haul in under 30 minutes, right from your driveway.
Key Features
- Reduces sag, sway, and roll when towing and hauling
- Comfortable ride, loaded or unloaded
- DIY installation
- Zero post-installation maintenance
Specs
Note: Even though you’re increasing the spring rate by adding this upgrade, this does not increase the GVWR (Gross Vehicle Weight Rating). Please make sure that the load does not exceed the GVWR set by the manufacturer.
What's Included
How to Install
Suspension Support Location
Kit Type
Our Timbren SES kits are built to last. We back this up with a lifetime warranty.
Covered under this warranty are defects in material and workmanship, under normal use and service for the life of the vehicle on which the kit was originally installed.
FREE Ground Shipping on All Orders
Free ground shipping is available in the contiguous United States on all orders. Normal processing time is between 1 – 2 business days from placing the order.
We make every effort to ship the order within this processing time; however, no guarantees are expressed or implied.
100-Day Money Back Guarantee
If you’re not happy with your Timbren product, we want to remedy that. If our customer service team can’t find a solution for you, you can return your Timbren product for a refund, a replacement product, or another product of similar value within 100 days of purchasing the product. We’ll cover return shipping costs, too.
